6623897461 has 4 divisors (see below), whose sum is σ = 6777941632. Its totient is φ = 6469853292.

The previous prime is 6623897431. The next prime is 6623897473. The reversal of 6623897461 is 1647983266.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6623897461 - 2¹⁵ = 6623864693 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6623897399 and 6623897408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6623897431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77022021 + ... + 77022106.

It is an arithmetic number, because the mean of its divisors is an integer number (1694485408).

Almost surely, 2^6623897461 is an apocalyptic number.

It is an amenable number.

6623897461 is a deficient number, since it is larger than the sum of its proper divisors (154044171).

6623897461 is a wasteful number, since it uses less digits than its factorization.

6623897461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154044170.

The product of its digits is 2612736, while the sum is 52.

The square root of 6623897461 is about 81387.3298554511. The cubic root of 6623897461 is about 1878.0386838702.

The spelling of 6623897461 in words is "six billion, six hundred twenty-three million, eight hundred ninety-seven thousand, four hundred sixty-one".